Guys me ! simplify these expressions using parachute expert my dear aunt sally. type your answer in the box. do not use any spaces.

5x – 3 – x + 3(x + 1^2)

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Find the value of the cosine for angle a

X2 + y 2 = 36 x + y = 6 solve the system of equations.